Битва за Атлантику (1939—1945) (Ukrainian Wikipedia)

Howarth та Law, 1994, с. 252-253, Jean Kessler, in. Stephen Howarth, Derek Law (1994). The Battle of the Atlantic 1939-1945 : the 50th anniversary International Naval Conference (англ.). London: Greenhill. с. 639. ISBN 978-1-55750-058-8. OCLC 69445950.
Howarth та Law, 1994, с. 256, Jean Kessler, in. Stephen Howarth, Derek Law (1994). The Battle of the Atlantic 1939-1945 : the 50th anniversary International Naval Conference (англ.). London: Greenhill. с. 639. ISBN 978-1-55750-058-8. OCLC 69445950.
Howarth та Law, 1994, с. 264, Jean Kessler, in. Stephen Howarth, Derek Law (1994). The Battle of the Atlantic 1939-1945 : the 50th anniversary International Naval Conference (англ.). London: Greenhill. с. 639. ISBN 978-1-55750-058-8. OCLC 69445950.
Howarth та Law, 1994, с. 323, Alberto Santoni, The italian submarine campaign, in. Stephen Howarth, Derek Law (1994). The Battle of the Atlantic 1939-1945 : the 50th anniversary International Naval Conference (англ.). London: Greenhill. с. 639. ISBN 978-1-55750-058-8. OCLC 69445950.
Howarth та Law, 1994, с. 324, Santoni, in. Stephen Howarth, Derek Law (1994). The Battle of the Atlantic 1939-1945 : the 50th anniversary International Naval Conference (англ.). London: Greenhill. с. 639. ISBN 978-1-55750-058-8. OCLC 69445950.
Howarth та Law, 1994, с. 327, Santoni, in. Stephen Howarth, Derek Law (1994). The Battle of the Atlantic 1939-1945 : the 50th anniversary International Naval Conference (англ.). London: Greenhill. с. 639. ISBN 978-1-55750-058-8. OCLC 69445950.
Howarth та Law, 1994, с. 328, Santoni, in. Stephen Howarth, Derek Law (1994). The Battle of the Atlantic 1939-1945 : the 50th anniversary International Naval Conference (англ.). London: Greenhill. с. 639. ISBN 978-1-55750-058-8. OCLC 69445950.
Howarth та Law, 1994, с. 333-335, Santoni, in. Stephen Howarth, Derek Law (1994). The Battle of the Atlantic 1939-1945 : the 50th anniversary International Naval Conference (англ.). London: Greenhill. с. 639. ISBN 978-1-55750-058-8. OCLC 69445950.
Howarth та Law, 1994, с. 334, Santoni, in. Stephen Howarth, Derek Law (1994). The Battle of the Atlantic 1939-1945 : the 50th anniversary International Naval Conference (англ.). London: Greenhill. с. 639. ISBN 978-1-55750-058-8. OCLC 69445950.
Howarth та Law, 1994, с. 202, W. Glover, Manning and training the allied navies, in. Stephen Howarth, Derek Law (1994). The Battle of the Atlantic 1939-1945 : the 50th anniversary International Naval Conference (англ.). London: Greenhill. с. 639. ISBN 978-1-55750-058-8. OCLC 69445950.